Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector

Owing to human labor shortages, the automation of labor-intensive manual waste-sorting is needed. The goal of automating waste-sorting is to replace the human role of robust detection and agile manipulation of waste items with robots. To achieve this, we propose three methods. First, we provide a co...

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Main Authors: Takuya Kiyokawa, Hiroki Katayama, Yuya Tatsuta, Jun Takamatsu, Tsukasa Ogasawara
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9530533/
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author Takuya Kiyokawa
Hiroki Katayama
Yuya Tatsuta
Jun Takamatsu
Tsukasa Ogasawara
author_facet Takuya Kiyokawa
Hiroki Katayama
Yuya Tatsuta
Jun Takamatsu
Tsukasa Ogasawara
author_sort Takuya Kiyokawa
collection DOAJ
description Owing to human labor shortages, the automation of labor-intensive manual waste-sorting is needed. The goal of automating waste-sorting is to replace the human role of robust detection and agile manipulation of waste items with robots. To achieve this, we propose three methods. First, we provide a combined manipulation method using graspless push-and-drop and pick-and-release manipulation. Second, we provide a robotic system that can automatically collect object images to quickly train a deep neural&#x2013;network model. Third, we provide a method to mitigate the differences in the appearance of target objects from two scenes: one for dataset collection and the other for waste sorting in a recycling factory. If differences exist, the performance of a trained waste detector may decrease. We address differences in illumination and background by applying object scaling, histogram matching with histogram equalization, and background synthesis to the source target-object images. Via experiments in an indoor experimental workplace for waste-sorting, we confirm that the proposed methods enable quick collection of the training image sets for three classes of waste items (<italic>i.e.,</italic> aluminum can, glass bottle, and plastic bottle) and detection with higher performance than the methods that do not consider the differences. We also confirm that the proposed method enables the robot quickly manipulate the objects.
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spelling doaj.art-90ad80b6820c44ebbdcba2033f2863b02022-12-21T22:11:55ZengIEEEIEEE Access2169-35362021-01-01912461612463110.1109/ACCESS.2021.31107959530533Robotic Waste Sorter With Agile Manipulation and Quickly Trainable DetectorTakuya Kiyokawa0https://orcid.org/0000-0002-8555-8489Hiroki Katayama1Yuya Tatsuta2Jun Takamatsu3https://orcid.org/0000-0001-7457-2878Tsukasa Ogasawara4https://orcid.org/0000-0001-9767-6039Nara Institute of Science and Technology (NAIST), Ikoma, Nara, JapanNara Institute of Science and Technology (NAIST), Ikoma, Nara, JapanNara Institute of Science and Technology (NAIST), Ikoma, Nara, JapanNara Institute of Science and Technology (NAIST), Ikoma, Nara, JapanNara Institute of Science and Technology (NAIST), Ikoma, Nara, JapanOwing to human labor shortages, the automation of labor-intensive manual waste-sorting is needed. The goal of automating waste-sorting is to replace the human role of robust detection and agile manipulation of waste items with robots. To achieve this, we propose three methods. First, we provide a combined manipulation method using graspless push-and-drop and pick-and-release manipulation. Second, we provide a robotic system that can automatically collect object images to quickly train a deep neural&#x2013;network model. Third, we provide a method to mitigate the differences in the appearance of target objects from two scenes: one for dataset collection and the other for waste sorting in a recycling factory. If differences exist, the performance of a trained waste detector may decrease. We address differences in illumination and background by applying object scaling, histogram matching with histogram equalization, and background synthesis to the source target-object images. Via experiments in an indoor experimental workplace for waste-sorting, we confirm that the proposed methods enable quick collection of the training image sets for three classes of waste items (<italic>i.e.,</italic> aluminum can, glass bottle, and plastic bottle) and detection with higher performance than the methods that do not consider the differences. We also confirm that the proposed method enables the robot quickly manipulate the objects.https://ieeexplore.ieee.org/document/9530533/Robotics and automationrobot vision systemscomputer visionrecyclingmachine learningobject detection
spellingShingle Takuya Kiyokawa
Hiroki Katayama
Yuya Tatsuta
Jun Takamatsu
Tsukasa Ogasawara
Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector
IEEE Access
Robotics and automation
robot vision systems
computer vision
recycling
machine learning
object detection
title Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector
title_full Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector
title_fullStr Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector
title_full_unstemmed Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector
title_short Robotic Waste Sorter With Agile Manipulation and Quickly Trainable Detector
title_sort robotic waste sorter with agile manipulation and quickly trainable detector
topic Robotics and automation
robot vision systems
computer vision
recycling
machine learning
object detection
url https://ieeexplore.ieee.org/document/9530533/
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